One Dock Two Use Featuring a detachable SD/TF card reader, this dock can be used as a whole, or you can connect the main part of the dock and the card reader to two computers respectively, which gives you more flexibility and makes the dock ideal for travel use. Multiple Display Modes Mirror the content in your PCs to bigger displays or extend more screen spaces through the HD port and VGA port; the resolutions of two extended monitors could reach 3840x2160 30Hz and 1920x1080 60Hz. Note: Both for Windows- and for IOS-based computers support extending two different displays. Thanks to its wide compatibility with most devices and portable design(pocket size, foldable cable and detachable card reader), this dock is perfect enough to meet your daily needs in different situations, like multitasking in office, 4K movies enjoying at home or work processing while on a business trip. 1000Mbps Speedy Ethernet Use Gigabit RJ45 port to optimize the performance of your home network, get rid of slow and lag-always WiFi and gain much more speedy and stable Internet surfing experience. Also backward compatible with 100/10Mbps. Transfer Files as With 104MB/s SD/TF card reader and dual 5Gbps USB3.0 ports, this dock transfers images from a SD/TF card or big files from a hard drive to your host devices in seconds. Meanwhile, the USB3.0 ports allow for more connections for hard drives, U disks, phones, etc. Note: SD and TF card slots can work simultaneously. Ports: 1xUSB IN, 1xUSB Power, 1xGigabit Ethernet port, 1x1080P VGA port, 1x4K HDMI port, 1xUSB 3.0, 1xUSB 3.0(Male), 1xUSB 3.0 (Female), 1xSD card reader, 1xMicro-SD card reader Status LED: Blue (The product printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: ABS Package Contents: 1 x HDMI-compatible Docking Station